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    Research on Parallel Characteristics of Lithium Iron Phosphate Batteries for Dual Electric Multiple Units

    Research on Parallel Characteristics of Lithium Iron Phosphate Batteries for Dual Electric Multiple Units


    The performance of power lithium ion battery pack in parallel will be further degraded due to the inconsistency of the cells. Under different working conditions, battery pack in parallel reflects different charging and discharging characteristics. In this paper, based on the series-parallel simulation platform, the actual current of parallel battery pack was obtained from the power characteristic of dual electric multiple unit (DEMU). The charging and discharging characteristics of parallel connection for Lithium iron phosphate (LiFePO4) battery batteries with constant current and the loop current phenomenon under different state of charge (SOC) were investigated combined with the practical charging and discharging tests in the laboratory, which are helpful to get the main causes of aging of battery pack in parallel. An optimized usage range of SOC is proposed which provides thebasis for battery management and prolongs the battery life cycle.

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    Title :

    Research on Parallel Characteristics of Lithium Iron Phosphate Batteries for Dual Electric Multiple Units

    Contributors:
    Zhang, Yanru (author) / Jiang, Jiuchun (author) / Zhang, Weige (author) / Shi, Wei (author) / Ma, Zeyu (author) / Zheng, Fangdan (author)
    Published in:

    EITRT, International Conference on Electrical and Information Technologies for Rail Transportation, 2013 ; 95-104

    Lecture Notes in Electrical Engineering ; 288

    Publication date :

    2014

    Size :

    10 Seiten

    ISBN :

    978-3-642-53751-6 , 978-3-642-53750-9

    ISSN :

    1876-1100

    DOI :

    https://doi.org/10.1007/978-3-642-53751-6_10

    Type of media :

    Conference paper

    Type of material :

    Print

    Language :

    English

    Keywords :

    Entladungscharakteristik , Lebenszyklus , Lithium-Eisenphosphat , optimale Nutzung , Lithiumionenbatterie , Arbeitsbedingung , Parallelanschluss , Ladezustand , Batteriemanagement , Lithium-Ionen-Akkumulator

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